Who is on God's side of the marriage debate?

As the Supreme Court considers two major same-sex marriage cases that could change marriage in the United States, religious leaders on both sides of the debate believe they are on God's side of the contentious issue. In the months leading up to this week's Supreme Court hearings, religious leaders from across the country have held prayer vigils and rallies for their respective causes. At each event, even those with diametrically opposed views, leaders cite biblical principles as the foundation for their beliefs.